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New products
Filtration+Separation April 2005
Compact air cleaners are added to Donaldson’s product range US company Donaldson Co Inc is offering manufacturers of smallduty and medium-duty off-road diesel engines the FKB-Series of compact and cost-effective air cleaners. It is also introducing its PowerCore filter for use in heavyduty transportation and off-road engines.
Satisfying the need for smaller, yet full-featured air cleaners, the filters in the company’s FKBSeries are smaller than equivalent products that are currently
available, but are said to deliver the same performance. They are targeted at manufacturers of diesel engines for the agriculture, construction, mining and industrial market places. FKB-Series air cleaners effectively reduce contaminants flowing into the air-intake system, protecting the engine and increasing its performance and fuel efficiency. The air cleaner’s plastic housing and durable construction tolerates all types of off-road operating environments. The FKB-Series cleaners are currently available in 10 cm and 13 cm (4 inch and 5 inch) models, with 15 cm and 20 cm (6 inch and 8 inch) versions available later this year. Larger air cleaner sizes, including the 25 cm, 30 cm and 36 cm (10 inch, 12 inch and 14 inch) models are currently under development.
As heavy-duty transportation and offroad diesel engine designs become more compact, engine manufacturers are seeking space-saving filtration systems without compromising efficiency and performance, says Donaldson. To meet these requirements the company has developed the twostage PowerCore air cleaner. Donaldson claims that PowerCore contains twice the amount of filter media than conventional pleated media used in traditional engine filtration systems. For maximum performance the filter combines high-efficiency inertial separator tubes that are closecoupled to a new media design, which is fluted to further improve air filtration, and also uses a new racetrack shape. These features result in improved packaging in space-constrained areas and
increased mounting flexibility, says the company. First introduced during 1999 as a smaller, more efficient alternative to larger, conventional air filter systems, PowerCore filtration technology was initially used in off-road equipment and heavyduty truck air-intake applications. Noticeably different in shape and style than other filtration technologies, the technology continues to be adapted for use in a wide range of vehicles and engine sizes.
APD centrifuge makes its debut Following five years of research and development, Celeros Inc of Novi, Michigan, USA, is introducing its Model APD centrifuge.
says the company. There are no scrapers, baffles, discs or discharge ports to impede solids removal. It is also jacketed for thermal control.
According to the company, the automatic piston discharge (APD) centrifuge is suitable for a broad range of two-phase solidliquid separation applications common to the biotechnology, pharmaceutical and related chemical process industries.
Liquid with entrained solids enters the rotor through the feed pipe, and is accelerated to full speed as it contacts the low shear feed cone. As the feed is clarified of solid particles by centrifugal forces up to 20 kg, the solids are deposited on the inside of the bowl as the centrate flows out of the case. When the bowl is full of solids, residual liquid is drained, and hydraulic or pneumatic pressure is used to actuate an internal piston that completely
It operates automatically in a hermetically-sealed environment, and uses a low shear design to enhance separation and a discharge piston to achieve total solids recovery after separation,
discharges the solids as it ‘strokes’ the full length of the bowl. Process applications in the biotechnology sector include cell debris removal and mammalian and bacterial cell harvesting. In the pharmaceutical industry it can be used for processing vaccines and precipitated crystal recovery. The company says that it has recently received long-term funding to help it manufacture the Model APD range. It is introducing the machine to the pharmaceuticals industry at Interphex 2005 which will take place on 26-28 April in New York, USA.